diff --git a/src/p11_rsa.c b/src/p11_rsa.c
index e699009..02d15cb 100644
--- a/src/p11_rsa.c
+++ b/src/p11_rsa.c
@@ -478,7 +478,7 @@ RSA_METHOD *PKCS11_get_rsa_method(void)
 		if (ops == NULL)
 			return NULL;
 		RSA_meth_set1_name(ops, "libp11 RSA method");
-		RSA_meth_set_flags(ops, 0);
+		RSA_meth_set_flags(ops, RSA_FLAG_FIPS_METHOD);
 		RSA_meth_set_priv_enc(ops, pkcs11_rsa_priv_enc_method);
 		RSA_meth_set_priv_dec(ops, pkcs11_rsa_priv_dec_method);
 		RSA_meth_set_finish(ops, pkcs11_rsa_free_method);